Track ball remote control unit



FIG. 1 is a top, front and left side perspective view of a track ball remote control unit showing my new design;

FIG. 2 is an enlarged top plan view thereof;

FIG. 3 is an enlarged right side elevational view thereof;

FIG. 4 is an enlarged front elevational view thereof;

FIG. 5 is an enlarged bottom plan view thereof;

FIG. 6 is an enlarged left side elevation view thereof; and,

FIG. 7 is a slightly enlarged bottom perspective view thereof. 

The ornamental design for a track ball remote control unit, as shown and described. 